When a solution to a problem doesn't work anymore, it's called _____

• a criteria
• a variable
• a failure point
• a prototype

Engineers have to be able to spot failure points, and then try to _____

• define the problem
• do research
• isolate variables
•  fix their solution

An organized series of steps used to accomplish a goal is called _____

• a variable
• a solution
• a plan
• an outcome

A condition or test that's part of a larger experiment is called _____

• a criteria
• a trial
• a plan
• a variable

A place where a solution to a problem doesn't work anymore is called _____

• a variable
• a failure point
• a prototype
• a weakness

One way that engineers test a solution in its early stages is to build a small _____

• variable
• model
• weight
• bulldozer

A specific weight at which the bridge is no longer a good solution is called _____

• a failure point
• a variable
• an isolated variable
• a weakness

After the failure, what was added to the model bridge before the new trial?

• another variable
• a bulldozer
• more weight
• extra support

In 1940, what was built to get people across Puget Sound?

• the Brooklyn Bridge
• the Tacoma Narrows Bridge
• The Chesapeake Bay Bridge
• The Golden Gate Bridge

For Galloping Gertie, the speed and angle of the wind were the bridge's _____

• weakness
• failure point
• solution
• isolated variable